About Sound Meter
**Sound Meter - Noise Detector** turns your phone into a handy decibel (dB) meter that measures environmental noise in real time using your device’s microphone.
Whether you are checking a noisy workplace, a loud restaurant, traffic, your neighborhood, or just curious about the sound around you, this app gives you a clear and instant reading.
With a clean, modern interface, a live dB gauge, and a rolling graph, you can watch sound levels rise and fall as they happen — and review your measurement history whenever you like.
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## ★ Key Features
**🎙️ Real-Time Sound Measurement**
See live decibel readings update instantly as the noise around you changes.
**📊 Live Gauge & Rolling Graph**
A smooth, easy-to-read gauge and scrolling graph show your sound levels at a glance.
**🔔 Noise Categories**
Readings are color-coded from Very Quiet to Dangerous, so you instantly understand how loud your environment is.
**⚠️ Loud Noise Warnings**
Get vibration and tone alerts when sound crosses your chosen dangerous threshold — helpful for protecting your hearing.
**📁 Measurement History**
Every session is saved with start time, duration, minimum dB, maximum dB, and average dB values, so you can track noise over time.
**📤 Export to CSV**
Share or save your measurement sessions as a CSV file for reports, records, or further analysis.
**🎚️ Calibration Offset**
Fine-tune readings to match a known reference meter for more accurate results.
**🌙 Dark Mode & Clean Design**
Enjoy a modern Material-style design with full light and dark theme support that is easy on the eyes.
**🔒 Private by Design**
Audio is processed entirely on your device, and raw audio is never recorded or saved. Your privacy stays protected.
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## ★ Perfect For
• Checking noise levels at home, work, school, or outdoors
• Monitoring traffic, construction, music, or crowd noise
• Being mindful of loud environments and protecting your hearing
• Anyone curious about how loud their surroundings really are
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## ★ Please Note
Phone microphones are not calibrated laboratory instruments, so readings are approximate sound pressure level estimates.
For professional or legal measurements, use a certified sound level meter. Use the built-in calibration offset to bring readings closer to a reference device.
Download **Sound Meter - Noise Detector** today and start measuring the noise around you!
